formbook | 8a59252c90714f9b4221ca33dfe39baa66254a69f7d074aae1994f58c55da736

General

Target

_MVOCEANGLORY_Inquiry.xlsx
Size

1.7MB
MD5

92484ad004022b18f529dc8420117aee
SHA1

2b614a1f275f6fff2fa6ff2362e343a8f7af3b07
SHA256

8a59252c90714f9b4221ca33dfe39baa66254a69f7d074aae1994f58c55da736
SHA512

7703a2d1bc91178a45bad9a3fe4e4ac9fb14fb8b8f3e7fa2b448ac8e3b428000b29b220a85f567e53a1d0173e7cf1f658381b5be7ce19d47599d9fce54622d1b

Score

10^/10

formbook xloader loader rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

C2

http://www.kaiyuansu.pro/incn/

Decoy

1bovvfk93jd.com

enlightenedhealthcoaching.com

findthatsmartphone.com

intelligentsystemsus.com

xn--lmsealamientos-tnb.com

eot0luh5ia.men

babanewshop.com

beyond-bit.com

meritane.com

buythinsecret.com

c2ornot.com

twelvesband.com

rktlends.com

bourseandish.com

happyshop88.com

topangacanyonvintage.com

epersonalloansonline.com

roofers-anaheim.com

shanghaiys.net

bickel.wtf

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook
Xloader
Xloader is a rebranded version of Formbook malware.
loader xloader

Xloader Payload 3 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/1580-20-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral1/memory/1580-21-0x000000000041D060-mapping.dmp	xloader
behavioral1/memory/1116-31-0x00000000000F0000-0x0000000000119000-memory.dmp	xloader

Blocklisted process makes network request 1 IoCs

Processes:

EQNEDT32.EXE

flow pid process

7 752 EQNEDT32.EXE
Executes dropped EXE 2 IoCs

Processes:

vbc.exevbc.exe

pid process

476 vbc.exe
1580 vbc.exe
Loads dropped DLL 4 IoCs

Processes:

EQNEDT32.EXE

pid process

752 EQNEDT32.EXE
752 EQNEDT32.EXE
752 EQNEDT32.EXE
752 EQNEDT32.EXE
Uses the VBS compiler for execution 1 TTPs

Scripting
T1064

flow	pid	process
7	752	EQNEDT32.EXE

pid	process
476	vbc.exe
1580	vbc.exe

pid	process
752	EQNEDT32.EXE
752	EQNEDT32.EXE
752	EQNEDT32.EXE
752	EQNEDT32.EXE

Suspicious use of SetThreadContext 3 IoCs

Processes:

vbc.exevbc.execmstp.exe

description	pid	process	target process
PID 476 set thread context of 1580	476	vbc.exe	vbc.exe
PID 1580 set thread context of 1268	1580	vbc.exe	Explorer.EXE
PID 1116 set thread context of 1268	1116	cmstp.exe	Explorer.EXE

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry
T1012

System Information Discovery
T1082

Processes:

EXCEL.EXE

description ioc process

Key opened \REGISTRY\MACHINE\Hardware\Description\System\FloatingPointProcessor EXCEL.EXE
Launches Equation Editor 1 TTPs 1 IoCs
Equation Editor is an old Office component often targeted by exploits such as CVE-2017-11882.
exploit

Exploitation for Client Execution
T1203

Processes:

EQNEDT32.EXE

pid process

752 EQNEDT32.EXE

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\FloatingPointProcessor	EXCEL.EXE

pid	process
752	EQNEDT32.EXE

Modifies Internet Explorer settings 1 TTPs 9 IoCs

adware spyware

Modify Registry

T1112

Processes:

EXCEL.EXE

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55"	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\EXCEL.EXE/3000"	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\ONBttnIE.dll/105"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\Toolbar	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

2044 EXCEL.EXE

pid	process
2044	EXCEL.EXE

Suspicious behavior: EnumeratesProcesses 22 IoCs

Processes:

vbc.execmstp.exe

pid	process
1580	vbc.exe
1580	vbc.exe
1116	cmstp.exe
1116	cmstp.exe
1116	cmstp.exe
1116	cmstp.exe
1116	cmstp.exe
1116	cmstp.exe
1116	cmstp.exe
1116	cmstp.exe
1116	cmstp.exe
1116	cmstp.exe
1116	cmstp.exe
1116	cmstp.exe
1116	cmstp.exe
1116	cmstp.exe
1116	cmstp.exe
1116	cmstp.exe
1116	cmstp.exe
1116	cmstp.exe
1116	cmstp.exe
1116	cmstp.exe

Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

vbc.execmstp.exe

pid process

1580 vbc.exe
1580 vbc.exe
1580 vbc.exe
1116 cmstp.exe
1116 cmstp.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

vbc.execmstp.exe

description pid process

Token: SeDebugPrivilege 1580 vbc.exe
Token: SeDebugPrivilege 1116 cmstp.exe
Suspicious use of FindShellTrayWindow 4 IoCs

Processes:

Explorer.EXE

pid process

1268 Explorer.EXE
1268 Explorer.EXE
1268 Explorer.EXE
1268 Explorer.EXE
Suspicious use of SendNotifyMessage 4 IoCs

Processes:

Explorer.EXE

pid process

1268 Explorer.EXE
1268 Explorer.EXE
1268 Explorer.EXE
1268 Explorer.EXE
Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

EXCEL.EXE

pid process

2044 EXCEL.EXE
2044 EXCEL.EXE
2044 EXCEL.EXE

description	pid	process
Token: SeDebugPrivilege	1580	vbc.exe
Token: SeDebugPrivilege	1116	cmstp.exe

pid	process
1268	Explorer.EXE
1268	Explorer.EXE
1268	Explorer.EXE
1268	Explorer.EXE

pid	process
1268	Explorer.EXE
1268	Explorer.EXE
1268	Explorer.EXE
1268	Explorer.EXE

pid	process
2044	EXCEL.EXE
2044	EXCEL.EXE
2044	EXCEL.EXE

Suspicious use of WriteProcessMemory 22 IoCs

Processes:

EQNEDT32.EXEvbc.exeExplorer.EXEcmstp.exe

description	pid	process	target process
PID 752 wrote to memory of 476	752	EQNEDT32.EXE	vbc.exe
PID 752 wrote to memory of 476	752	EQNEDT32.EXE	vbc.exe
PID 752 wrote to memory of 476	752	EQNEDT32.EXE	vbc.exe
PID 752 wrote to memory of 476	752	EQNEDT32.EXE	vbc.exe
PID 476 wrote to memory of 1580	476	vbc.exe	vbc.exe
PID 476 wrote to memory of 1580	476	vbc.exe	vbc.exe
PID 476 wrote to memory of 1580	476	vbc.exe	vbc.exe
PID 476 wrote to memory of 1580	476	vbc.exe	vbc.exe
PID 476 wrote to memory of 1580	476	vbc.exe	vbc.exe
PID 476 wrote to memory of 1580	476	vbc.exe	vbc.exe
PID 476 wrote to memory of 1580	476	vbc.exe	vbc.exe
PID 1268 wrote to memory of 1116	1268	Explorer.EXE	cmstp.exe
PID 1268 wrote to memory of 1116	1268	Explorer.EXE	cmstp.exe
PID 1268 wrote to memory of 1116	1268	Explorer.EXE	cmstp.exe
PID 1268 wrote to memory of 1116	1268	Explorer.EXE	cmstp.exe
PID 1268 wrote to memory of 1116	1268	Explorer.EXE	cmstp.exe
PID 1268 wrote to memory of 1116	1268	Explorer.EXE	cmstp.exe
PID 1268 wrote to memory of 1116	1268	Explorer.EXE	cmstp.exe
PID 1116 wrote to memory of 2000	1116	cmstp.exe	cmd.exe
PID 1116 wrote to memory of 2000	1116	cmstp.exe	cmd.exe
PID 1116 wrote to memory of 2000	1116	cmstp.exe	cmd.exe
PID 1116 wrote to memory of 2000	1116	cmstp.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1268

C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
"C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\_MVOCEANGLORY_Inquiry.xlsx
2⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:2044

C:\Windows\SysWOW64\autoconv.exe
"C:\Windows\SysWOW64\autoconv.exe"
2⤵
PID:1840

C:\Windows\SysWOW64\cmstp.exe
"C:\Windows\SysWOW64\cmstp.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1116

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Public\vbc.exe"
3⤵
PID:2000

C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE
"C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE" -Embedding
1⤵
- Blocklisted process makes network request
- Loads dropped DLL
- Launches Equation Editor
- Suspicious use of WriteProcessMemory
PID:752

C:\Users\Public\vbc.exe
"C:\Users\Public\vbc.exe"
2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:476

C:\Users\Public\vbc.exe
"{path}"
3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1580

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scripting

1

T1064

Exploitation for Client Execution

1

T1203

Persistence

Privilege Escalation

Defense Evasion

Scripting

1

T1064

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Public\vbc.exe
MD5
1c68b56f273eab047eccce3cbad492a5

SHA1
76598e8315496d2bfcaa35edd12f521483ff5c31

SHA256
6961aeab02e7dafda1e2f16e9ec88fd5dce6199925a71f22657a2c48627ae087

SHA512
7f24e6f61a86314e91275d4492b74659ca34f036fb32c20eccaebd68410a228dae3d1bca2f6faa74933692b50a19aca693b3c5ca803c3717175e19b58d1ba6e6

Download Submit
C:\Users\Public\vbc.exe
MD5
1c68b56f273eab047eccce3cbad492a5

SHA1
76598e8315496d2bfcaa35edd12f521483ff5c31

SHA256
6961aeab02e7dafda1e2f16e9ec88fd5dce6199925a71f22657a2c48627ae087

SHA512
7f24e6f61a86314e91275d4492b74659ca34f036fb32c20eccaebd68410a228dae3d1bca2f6faa74933692b50a19aca693b3c5ca803c3717175e19b58d1ba6e6

Download Submit
C:\Users\Public\vbc.exe
MD5
1c68b56f273eab047eccce3cbad492a5

SHA1
76598e8315496d2bfcaa35edd12f521483ff5c31

SHA256
6961aeab02e7dafda1e2f16e9ec88fd5dce6199925a71f22657a2c48627ae087

SHA512
7f24e6f61a86314e91275d4492b74659ca34f036fb32c20eccaebd68410a228dae3d1bca2f6faa74933692b50a19aca693b3c5ca803c3717175e19b58d1ba6e6

Download Submit
\Users\Public\vbc.exe
MD5
1c68b56f273eab047eccce3cbad492a5

SHA1
76598e8315496d2bfcaa35edd12f521483ff5c31

SHA256
6961aeab02e7dafda1e2f16e9ec88fd5dce6199925a71f22657a2c48627ae087

SHA512
7f24e6f61a86314e91275d4492b74659ca34f036fb32c20eccaebd68410a228dae3d1bca2f6faa74933692b50a19aca693b3c5ca803c3717175e19b58d1ba6e6

Download Submit
\Users\Public\vbc.exe
MD5
1c68b56f273eab047eccce3cbad492a5

SHA1
76598e8315496d2bfcaa35edd12f521483ff5c31

SHA256
6961aeab02e7dafda1e2f16e9ec88fd5dce6199925a71f22657a2c48627ae087

SHA512
7f24e6f61a86314e91275d4492b74659ca34f036fb32c20eccaebd68410a228dae3d1bca2f6faa74933692b50a19aca693b3c5ca803c3717175e19b58d1ba6e6

Download Submit
\Users\Public\vbc.exe
MD5
1c68b56f273eab047eccce3cbad492a5

SHA1
76598e8315496d2bfcaa35edd12f521483ff5c31

SHA256
6961aeab02e7dafda1e2f16e9ec88fd5dce6199925a71f22657a2c48627ae087

SHA512
7f24e6f61a86314e91275d4492b74659ca34f036fb32c20eccaebd68410a228dae3d1bca2f6faa74933692b50a19aca693b3c5ca803c3717175e19b58d1ba6e6

Download Submit
\Users\Public\vbc.exe
MD5
1c68b56f273eab047eccce3cbad492a5

SHA1
76598e8315496d2bfcaa35edd12f521483ff5c31

SHA256
6961aeab02e7dafda1e2f16e9ec88fd5dce6199925a71f22657a2c48627ae087

SHA512
7f24e6f61a86314e91275d4492b74659ca34f036fb32c20eccaebd68410a228dae3d1bca2f6faa74933692b50a19aca693b3c5ca803c3717175e19b58d1ba6e6

Download Submit
memory/476-17-0x0000000000CE0000-0x0000000000CE1000-memory.dmp

Filesize
4KB

Download
memory/476-18-0x00000000008F0000-0x00000000008FE000-memory.dmp

Filesize
56KB

Download
memory/476-11-0x0000000000000000-mapping.dmp

Download
memory/476-19-0x0000000004F10000-0x0000000004F65000-memory.dmp

Filesize
340KB

Download
memory/476-14-0x000000006C7D0000-0x000000006CEBE000-memory.dmp

Filesize
6.9MB

Download
memory/476-15-0x00000000010B0000-0x00000000010B1000-memory.dmp

Filesize
4KB

Download
memory/752-5-0x0000000075251000-0x0000000075253000-memory.dmp

Filesize
8KB

Download
memory/1116-27-0x0000000000000000-mapping.dmp

Download
memory/1116-33-0x0000000001EC0000-0x0000000001F50000-memory.dmp

Filesize
576KB

Download
memory/1116-30-0x00000000005E0000-0x00000000005F8000-memory.dmp

Filesize
96KB

Download
memory/1116-32-0x0000000001FF0000-0x00000000022F3000-memory.dmp

Filesize
3.0MB

Download
memory/1116-31-0x00000000000F0000-0x0000000000119000-memory.dmp

Filesize
164KB

Download
memory/1268-26-0x00000000074E0000-0x0000000007674000-memory.dmp

Filesize
1.6MB

Download
memory/1268-34-0x0000000004A10000-0x0000000004ACA000-memory.dmp

Filesize
744KB

Download
memory/1580-25-0x00000000002F0000-0x0000000000301000-memory.dmp

Filesize
68KB

Download
memory/1580-24-0x0000000000820000-0x0000000000B23000-memory.dmp

Filesize
3.0MB

Download
memory/1580-21-0x000000000041D060-mapping.dmp

Download
memory/1580-20-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/2000-29-0x0000000000000000-mapping.dmp

Download
memory/2016-6-0x000007FEF6510000-0x000007FEF678A000-memory.dmp

Filesize
2.5MB

Download
memory/2044-2-0x000000002F1D1000-0x000000002F1D4000-memory.dmp

Filesize
12KB

Download
memory/2044-3-0x0000000071671000-0x0000000071673000-memory.dmp

Filesize
8KB

Download
memory/2044-4-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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